Answers to: how can i see scale and grid on exported images?https://help.openstreetmap.org/questions/10784/how-can-i-see-scale-and-grid-on-exported-images<p>When i export map, i get only picture, without grid and map scale. How can i add them?</p>enFri, 14 Feb 2014 11:52:02 +0000Answer by erikhttps://help.openstreetmap.org/questions/10784/how-can-i-see-scale-and-grid-on-exported-images/30740<p>You have to calculate it yourself and add it with a image editing software (GIMP or Inkscape or the like).</p>
<pre><code>resolution = 156543.034 meters/pixel * cos(latitude) / (2 ^ zoomlevel)
</code></pre>
<p>The resolution means how many meters per pixel you get.</p>
<pre><code>scale = 1 : (dpi * 39.37 in/m * resolution)
</code></pre>
<p>The scale means, how many cm in reality is 1 cm on the paper (or on the screen).</p>
<p>So if you have a screen with 96 dpi, you get that one pixel is 1.1943 meters. And you get a scale of 1 : 4 231 which means that 1 cm on your screen is 42.3 m in reality.</p>
<p>If you have a printer which prints 300 dpi … (now do the calculations yourself).</p>
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<p>There is a <a href="http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames#Resolution_and_Scale">wiki page about scaling</a>.</p>erikFri, 14 Feb 2014 11:52:02 +0000https://help.openstreetmap.org/questions/10784/how-can-i-see-scale-and-grid-on-exported-images/30740Answer by NicolasDumoulinhttps://help.openstreetmap.org/questions/10784/how-can-i-see-scale-and-grid-on-exported-images/10826<p>You can try using qgis that have a proper printing tool.</p>NicolasDumoulinMon, 27 Feb 2012 09:15:42 +0000https://help.openstreetmap.org/questions/10784/how-can-i-see-scale-and-grid-on-exported-images/10826Answer by stephan75https://help.openstreetmap.org/questions/10784/how-can-i-see-scale-and-grid-on-exported-images/10787<p>You can ahve a look at <a href="http://help.openstreetmap.org/questions/9273/coordinate-lines-in-josm">coordinate-lines-in-josm</a> ... there is a solution to get grid lines in any *.osm file via an editor.</p>
<p>Or have a look at <a href="http://wiki.openstreetmap.org/wiki/Maposmatic">Maposmatic</a></p>stephan75Sat, 25 Feb 2012 16:05:04 +0000https://help.openstreetmap.org/questions/10784/how-can-i-see-scale-and-grid-on-exported-images/10787Answer by Gnonthgolhttps://help.openstreetmap.org/questions/10784/how-can-i-see-scale-and-grid-on-exported-images/10786<p>You can add them with any image editing software. If you want a more customized map you can try out <a href="http://mapbox.com/tilemill/">TileMill</a>.</p>GnonthgolSat, 25 Feb 2012 10:06:50 +0000https://help.openstreetmap.org/questions/10784/how-can-i-see-scale-and-grid-on-exported-images/10786